The Yamaha can be tuned, too, as is done in Germany by Manfred Diestertich, chief of Audio Physic. It comes to 1650 Euros in this version, and sonically very close to the much more expensive McIntosh - at least this was the conclusion of German Stereoplay, when comparing these units recently. And there seems to be another quite interesting unit from British Zero One, see an essay-review on
www.tnt-audio.com/sorgenti/zero-one_e.html